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As-Needed Versus Regular Use of Fluticasone Furoate Nasal Spray in Patients with Moderate to Severe, Persistent,
Torpong Thongngarm1, Chamard Wongsa1, Phichayut Phinyo2
1Division of Allergy and Clinical Immunology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Background:
Using intranasal corticosteroid (INCS) regularly is recommended for treating perennial allergic rhinitis. However, no studies have evaluated "as-needed" use.
Objective:
To compare the efficacy between as-needed and regular use of INCS in patients with moderate to severe perennial allergic rhinitis.
Methods:
In a 6-week randomized controlled trial, participants were assigned to either fluticasone furoate (FF) nasal spray, (27.5 μg) 2 sprays once daily for 1 week, followed by as-needed use (FF-as-needed) for 5 more weeks or 2 sprays once daily for 6 weeks (FF-regular). The primary outcome was a change in the total nasal symptom score (TNSS). The secondary outcomes were the change in nasal peak inspiratory flow, Rhinoconjunctivitis Quality of Life-36 Questionnaire score, and cumulative FF dose.
Results:
In total of 108 patients, 53 and 55 patients were randomized to the FF-as-needed and FF-regular group, respectively. The difference in mean change in TNSS between the 2 groups was not significant at week 6 (1.21 points; 95% CI, -0.08 to 2.49; P = .066). The FF-regular group tended toward a greater improvement in TNSS. The FF-regular group had a higher mean change in nasal peak inspiratory flow than the FF-as-needed group at week 6 (-19.21 L/min; 95% CI, -33.54 to -4.89; P = .009). Both groups had similar improvement in Rhinoconjunctivitis Quality of Life-36 Questionnaire. The mean cumulative FF dose in the FF-as-needed group was 51% that of the FF-regular group.
Conclusions:
Both as-needed and regular use of INCS had similar improvement in TNSS and RCQ-36 score in patients with perennial allergic rhinitis. As-needed use had half of INCS exposure of the regular use.
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